Add FA, EN, and AR static copy, with English LTR and catalog hidden outside Persian.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/i18n/index.ts

@@ -0,0 +1,14 @@
+import { ar } from "@/i18n/ar";
+import { defaultLocale, isLocale, type Locale } from "@/i18n/config";
+import { en } from "@/i18n/en";
+import { fa, type Messages } from "@/i18n/fa";
+
+export const dictionaries: Record<Locale, Messages> = { fa, en, ar };
+
+export function getMessages(locale: Locale | string | null | undefined): Messages {
+  return dictionaries[isLocale(locale) ? locale : defaultLocale];
+}
+
+export function interpolate(template: string, vars: Record<string, string>) {
+  return Object.entries(vars).reduce((text, [key, value]) => text.split(`{${key}}`).join(value), template);
+}